浅谈钢砼短柱的判别及避免出现短柱破坏的措施

高层建筑的迅猛发展,使得钢砼短柱问题越来越受到人们的关注。本文介绍了钢砼短柱、超短柱的判别方法和各种非传统的柱截面选型,这些非传统的截面形式能够有效的提高短柱的承载能力,提高柱子的延性,避免出现短柱破坏,但由于施工工艺比较复杂,相对工程造价也比较高,使用上受到一定的限制。对于大量的多层建筑和小高层建筑,比较经济的做法是采用适当的构造措施,以提高短柱的承载能力和延性,改善短柱的抗震性能。

On the differentiation of short column frame and the measures for prevention the destroy of short column

With the fast development of high - rise building, people are more and more concerns for short columns problems. The differentiate methods for short columns and ultrashort columns, and some anti - traditional cross - section for columns were introduced in this paper. The anti - traditional cross - section can increase the bearing capacity and ductility effectively, avoid the appearance of short columns destroy. Because of the complexity of construction technique, the construction cost is also increased which make the use of it limited. For most of muhistory building and mid - rise building, properly structure measures also can increase the bearing capacity and ductility effectively and eeonomily, and improve the anti - seismic performance for short columns.